Thank you all for your very quick reply! I've heard about this SOAP-over-UDP spec (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnglobspec/html/soap-over-udp.asp). So, Martin, you say that it could not be a solution? Perhaps it should be an idea using Mark's solution (with DNS).
I thought to resolve the problem putting a SOAP envelope into a UDP datagram, send the datagram to a broadcast ip and that's all folks...but I don't know how and, as you, Martins, wrote, I was not able to find anybody who has implemented this yet. Can you suggest me another solutions? Thank you very much again!! Cheers, Francesco 2005/5/28, Martin Gainty <[EMAIL PROTECTED]>: > Mark/Francesco > I would caution on use of UDP as the SOAP Portocols (e.g. HTTP) is/are > decidely not UDP but instead a connection-oriented TCP > To date I have not seen UDP Ports used for SOAP transmission although since > there is no requirement for verifiable connection and or handshakes > I would venture to guess UDP is available as the transmission medium but I > have not seen any UDP Ports used for SOAP thus far > Anyone else ??? > Ciao- > Martin- > > ----- Original Message ----- > From: "mdonaghue" <[EMAIL PROTECTED]> > To: <[email protected]>; "'Francesco Munari'" <[EMAIL PROTECTED]> > Sent: Saturday, May 28, 2005 3:14 PM > Subject: RE: SOAP-over-UDP > > > Hi Franceso, > > > > I've worked briefly with the apache soap api, not that familiar with it. > > Typically a soap message is sent to a single soap server address, which is > > specified by a url or an ip address, as well as a port. So your server > > address on the LAN might be something like 192.168.100.2:8080. (I'm not > > sure > > what the port is for UDDI, so just using standard TomCat Web Server port). > > > > IIRC, you there's a point at which you specify that address in the setup > > for > > your soap call. One thing you could try is to change the address to the > > subnet's broadcast address, 255.255.255.0:8080, assuming a class c network > > where the first 3 quads specify the network portion of the submask. > > > > However, this may not a scalable solution, since the broadcast wouldn't > > carry beyond the physical subnet on which you are located. Using UDDI to > > discover services is one thing, but dynamically discovering UDDI servers > > is > > obviously a different problem. It also doesn't address the issue of more > > than one UDDI server running on the same subnet. > > > > A more generalized solution might involve a distributed ip lookup service, > > namely DNS. For example when DNS looks up the ip address of Yahoo.com, at > > some point the actual ip address that serves the request is dynamically > > assigned to one of dozens (or hundreds) of servers based on a scheduling > > scheme. You could locally enable DNS lookup, and create an entry based on > > some url like "myuddpsever.com", and give it your local UDDI server's ip > > address, and the rest would be handled within the network. The advantage > > to > > this is your UDDP server could be anywhere and your message would still > > reach it. > > > > hth, > > Mark > > > > > > > > > > > > -----Original Message----- > > From: Francesco Munari [mailto:[EMAIL PROTECTED] > > Sent: Saturday, May 28, 2005 4:58 AM > > To: [email protected] > > Subject: SOAP-over-UDP > > > > Hi, I'm desperate! > > I'm trying to find out how to send a broadcast SOAP request to a UDDI > > registry in a LAN, but I'm not able to do this. I've looked for some > > example but I've not found anithing. > > > > Please...could anybody help me? > > I'm making a thesis for the University of Florence (Italy) and I have > > to discovery dinamically web service published in some UDDI registry > > somewhere in a LAN. I have to send a broadcast SOAP request to these > > UDDI registry (as I wrote few lines above). > > Of course I'm using Java language. > > > > Thank you very much for your help...I'm in a great hurry...thanks very > > very much to everyone could help me! > > > > Best reguards, > > > > Francesco > > > > >
